// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "gin/test/file_runner.h"

#include "base/files/file_util.h"
#include "base/message_loop/message_loop.h"
#include "base/path_service.h"
#include "gin/array_buffer.h"
#include "gin/converter.h"
#include "gin/modules/console.h"
#include "gin/modules/module_registry.h"
#include "gin/public/context_holder.h"
#include "gin/public/isolate_holder.h"
#include "gin/test/file.h"
#include "gin/test/gc.h"
#include "gin/test/gtest.h"
#include "gin/try_catch.h"
#include "gin/v8_initializer.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace gin {

namespace {

    std::vector<base::FilePath> GetModuleSearchPaths()
    {
        std::vector<base::FilePath> search_paths(2);
        PathService::Get(base::DIR_SOURCE_ROOT, &search_paths[0]);
        PathService::Get(base::DIR_EXE, &search_paths[1]);
        search_paths[1] = search_paths[1].AppendASCII("gen");
        return search_paths;
    }

} // namespace

FileRunnerDelegate::FileRunnerDelegate()
    : ModuleRunnerDelegate(GetModuleSearchPaths())
{
    AddBuiltinModule(Console::kModuleName, Console::GetModule);
    AddBuiltinModule(GTest::kModuleName, GTest::GetModule);
    AddBuiltinModule(GC::kModuleName, GC::GetModule);
    AddBuiltinModule(File::kModuleName, File::GetModule);
}

FileRunnerDelegate::~FileRunnerDelegate()
{
}

void FileRunnerDelegate::UnhandledException(ShellRunner* runner,
    TryCatch& try_catch)
{
    ModuleRunnerDelegate::UnhandledException(runner, try_catch);
    FAIL() << try_catch.GetStackTrace();
}

void RunTestFromFile(const base::FilePath& path, FileRunnerDelegate* delegate,
    bool run_until_idle)
{
    ASSERT_TRUE(base::PathExists(path)) << path.LossyDisplayName();
    std::string source;
    ASSERT_TRUE(ReadFileToString(path, &source));

    base::MessageLoop message_loop;

#ifdef V8_USE_EXTERNAL_STARTUP_DATA
    gin::V8Initializer::LoadV8Snapshot();
    gin::V8Initializer::LoadV8Natives();
#endif

    gin::IsolateHolder::Initialize(gin::IsolateHolder::kStrictMode,
        gin::ArrayBufferAllocator::SharedInstance());

    gin::IsolateHolder instance;
    gin::ShellRunner runner(delegate, instance.isolate());
    {
        gin::Runner::Scope scope(&runner);
        v8::V8::SetCaptureStackTraceForUncaughtExceptions(true);
        runner.Run(source, path.AsUTF8Unsafe());

        if (run_until_idle) {
            message_loop.RunUntilIdle();
        } else {
            message_loop.Run();
        }

        v8::Local<v8::Value> result = runner.global()->Get(
            StringToSymbol(runner.GetContextHolder()->isolate(), "result"));
        EXPECT_EQ("PASS", V8ToString(result));
    }
}

} // namespace gin
